SASAKI, K. A Classification of Improper Inference Rules. Bulletin of the Section of Logic, [S. l.], v. 51, n. 2, p. 243–266, 2022. DOI: 10.18778/0138-0680.2022.12. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/11031. Acesso em: 25 apr. 2024.